package com.example.aganimserver.jobs;

import com.example.aganimserver.channels.ServerChannelInitializer;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import java.net.InetSocketAddress;

/**
 * @author agan
 * @ClassName NettyServer
 * @Description
 * @Date 2021/2/24 5:43 下午
 **/
@Slf4j
@Service
public class NettyServer {


    public void start(InetSocketAddress socketAddress){
        //new 一个主线程组
        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        //new 一个工作线程组
        EventLoopGroup workGroup = new NioEventLoopGroup(200);

        ServerBootstrap bootstrap = new ServerBootstrap()
                .group(bossGroup,workGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ServerChannelInitializer())
                .localAddress(socketAddress)
                //设置队列大小
                .option(ChannelOption.SO_BACKLOG, 1024)
                //两小时没有数据通信时，TCP自动发送一个活动探测数据报文
                .childOption(ChannelOption.SO_KEEPALIVE,true);

        try {
            ChannelFuture future = bootstrap.bind(socketAddress).sync();
            log.info("服务器启动开始监听端口: {}", socketAddress.getPort());
            future.channel().closeFuture().sync();
        } catch (InterruptedException e) {
            e.printStackTrace();


        } finally {
            //关闭主线程组
            bossGroup.shutdownGracefully();
            //关闭工作线程组
            workGroup.shutdownGracefully();
        }


    }
}
